cc/debug/traced_picture.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/debug/traced_picture.h"
   6
   7 #include "base/json/json_writer.h"
   8 #include "base/strings/stringprintf.h"
   9 #include "base/values.h"
  10 #include "cc/debug/traced_value.h"
  11
  12 namespace cc {
  13
  14 TracedPicture::TracedPicture(scoped_refptr<const Picture> picture)
  15     : picture_(picture), is_alias_(false) {}
  16
  17 TracedPicture::~TracedPicture() {
  18 }
  19
  20 scoped_refptr<base::debug::ConvertableToTraceFormat>
  21 TracedPicture::AsTraceablePicture(const Picture* picture) {
  22   return scoped_refptr<base::debug::ConvertableToTraceFormat>(
  23       new TracedPicture(picture));
  24 }
  25
  26 scoped_refptr<base::debug::ConvertableToTraceFormat>
  27 TracedPicture::AsTraceablePictureAlias(const Picture* original) {
  28   scoped_refptr<TracedPicture> ptr = new TracedPicture(original);
  29   ptr->is_alias_ = true;
  30   return scoped_refptr<base::debug::ConvertableToTraceFormat>(ptr);
  31 }
  32
  33 void TracedPicture::AppendAsTraceFormat(std::string* out) const {
  34   if (is_alias_)
  35     AppendPictureAlias(out);
  36   else
  37     AppendPicture(out);
  38 }
  39
  40 void TracedPicture::AppendPictureAlias(std::string* out) const {
  41   scoped_ptr<base::DictionaryValue> alias(new base::DictionaryValue());
  42   alias->SetString("id_ref", base::StringPrintf("%p", picture_.get()));
  43
  44   scoped_ptr<base::DictionaryValue> res(new base::DictionaryValue());
  45   res->Set("alias", alias.release());
  46
  47   std::string tmp;
  48   base::JSONWriter::Write(res.get(), &tmp);
  49   out->append(tmp);
  50 }
  51
  52 void TracedPicture::AppendPicture(std::string* out) const {
  53   scoped_ptr<base::Value> value = picture_->AsValue();
  54   std::string tmp;
  55   base::JSONWriter::Write(value.get(), &tmp);
  56   out->append(tmp);
  57 }
  58
  59 }  // namespace cc